Is it allowed to do commercial SaaS app? I want to add the way to pay over paddle, entering License Key. By overviewing already existed apps, for me it is not clear issue with commercial SaaS apps.

I want to use 3-rd party grid and chart libraries. FancyGrid fancygrid.com FancyGrid - JavaScript Grid Library for Enterprise | Angular React Vue grid... HighCharts highcharts.c...